#include<bits/stdc++.h>
using namespace std;
const int N=1e5+10;
int x,n,r[N];
int main()
{
    freopen("duel.in","r",stdin);
    freopen("duel.out","w",stdout);
    cin>>n;
    for(int i=1;i<=n;i++)
    {
        cin>>x;
        r[x]++;
    }
    int ans=0;
    for(int i=1;i<=N;i++)
        if(ans<r[i])ans=r[i];
    cout<<ans<<endl;
    return 0;
}
